'Marvel One-Shot: Agent Carter' -- FIRST LOOK at new short film!

Marvel Studios co-president and short-filmmaking impresario Louis D’Esposito has opened the secret file on the latest “One-Shot” film Agent Carter, and EW has the exclusive look at the retro-comic poster and three images from the movie, which will debut at Comic-Con next Friday.

As the title suggests, the latest in Marvel’s short-film series explores the post-Captain America heroics of British operative Peggy Carter. Hayley Atwell (TV’s The Pillars of the Earth) reprises her role as an analyst with the nascent S.H.I.E.L.D. organization, the SSR (Strategic Scientific Reserve.) They do things like, you know, build super-soldiers, fight evil, and go in search of the enigmatic “Zodiac.”

Agent Carter is in on the ground floor — but looking up at a glass ceiling.

Click through for more details from D’Esposito, and a look at each of the new images from the movie — along with details on how to be among the first to see it at Comic-Con.

Otherwise, you’ll have to wait until Sept. 24 when the short turns up on the Iron Man 3 Blu-ray release.